/*
 * Copyright (c) 2022-2023 Alex Spataru <https://github.com/alex-spataru>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#pragma once

#include <QObject>
#include <QDialog>
#include <QToolBar>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QPushButton>
#include <QPlainTextEdit>

#include <QJSValue>
#include <QJSEngine>

#include <QSourceHighlite/qsourcehighliter.h>

namespace Project
{
class CodeEditor : public QDialog
{
    Q_OBJECT

private:
    explicit CodeEditor();
    ~CodeEditor();
    CodeEditor(CodeEditor &&) = delete;
    CodeEditor(const CodeEditor &) = delete;
    CodeEditor &operator=(CodeEditor &&) = delete;
    CodeEditor &operator=(const CodeEditor &) = delete;

public:
    static CodeEditor &instance();
    QString defaultCode() const;
    QStringList parse(const QString &frame, const QString &separator);

public Q_SLOTS:
    void displayWindow();

private Q_SLOTS:
    void onNewClicked();
    void onOpenClicked();
    void onSaveClicked();
    void onHelpClicked();

private:
    bool checkModified();
    bool save(const bool silent = false);
    bool loadScript(const QString &script);
    void closeEvent(QCloseEvent *event) override;

private slots:
    void readCode();
    void writeChanges();

private:
    QJSEngine m_engine;
    QToolBar m_toolbar;
    QJSValue m_parseFunction;
    QPlainTextEdit m_textEdit;
    QSourceHighlite::QSourceHighliter *m_highlighter;
};
}
